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            <h2><font color="#FFFFFF">Time Series Graphs </font></h2></td>
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<p><br>
    If instead of "Regular Graph" you click on "Time Series Graph" you will obtain
    a quite different window in which you can introduce variables named "Gene n".
    Currently the Time Series Graphs have very limited use for generating simulated
    data. Currently only a single dependency function is implemented, a generalization
    of the Glass model of gene expression.<br>
    <br>
    <img height="584" src="../../images/Utime.jpg" width="595"><br>
    <br>
    As soon as you introduce a variable, an edge appears directed from that variable
    into itself&nbsp; with a number 1 attached.&nbsp; That is because you are seeing
    a compact representation of a time series, in which the structure in the Directed
    Graph window is repeated over and over. The number attached to an edge<br>
    indicates the time delay (in steps of arbitrary time measure) for the infljuence
    represented by the directed edge to occur. <br>
    <br>
    You can add and delete variables, change their names, add and delete directed
    edges, and change the time delays (by double clicking on a number).<br>
    Unlike with "Regular" graphs, a time series directed graph can have two or more
    edges between variables, so long each such edge has a different number. These
    multiple edges represent influences with different time delays. <br>
    <br>
    . You can see a graphical depiction of&nbsp; the time series itself by clicking
    on "Repeating Graph":<br>
    <br>
    <br>
    <img height="636" src="../../images/Uexpsanded.jpg" width="754"><br>
    <br>
    <br>
    This representation of the time series graph that comes up&nbsp; is sometimes
    a bit messy. Clicking on the :"Clean Up" tool button cleans it up a bit. <br>
    <br>
    There are 3 buttons on the top menu of the "Repeating Graph": Lag Graph, Hybrid
    Graph and Repeating Graph.<br>
    <br>
    Lag graph shows only the repeating structure. Hybrid Graph, which is often the
    most revealing, shows one instance of the repeating structure highlighted and
    other repetitions dimmed. Repeating Graph shows a long series of repetitions
    all highlighted. The picture above is of a Hybrid graph. The graphical<br>
    structures are the same in all three choices; only the display is different.<br>
    <br>
    You can make the same sorts of changes in the Repeating Graph window that you
    can make in the Directed Graph window.<br>
    <br>
    The Table View will show which variables each variable depends on, and the lags.<br>
    <br>
    The File menu is currently useless..<br>
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